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Construct an enthalpy cycle for the formation of water (H₂O) from hydrogen (H₂) and oxygen (O₂) using the following enthalpy changes: ΔHf°(H₂O) = -286 kJ/mol, ΔHf°(H₂) = 0 kJ/mol, ΔHf°(O₂) = 0 kJ/mol.
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